Updating trunk VERSION from 4089.0 to 4090.0

# This is an automated release commit.
# Do not revert without consulting chrome-pmo@google.com.
NOAUTOREVERT=true
TBR=cmasso@chromium.org

Change-Id: Ibfa72892603bf293ad5777213cc02fe1e4bfb2ab
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2107917Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#751586}

chrome/VERSION

 MAJOR=83
 MINOR=0
-BUILD=4089
+BUILD=4090
 PATCH=0